scholarly journals Effects of Enriched Charcoal as Permanent 0.2% Feed-Additive in Standard and Low-Protein Diets of Male Fattening Turkeys: An On-Farm Study

Animals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 541
Author(s):  
Hinz ◽  
Stracke ◽  
Schättler ◽  
Kemper ◽  
Spindler
Keyword(s):  
Animal Health ◽  
Matter Content ◽  
Feed Additive ◽  
Standard Diet ◽  
Dry Matter Content ◽  
Positive Effects ◽  
Low Protein ◽  
Protein Reduction ◽  
On Farm ◽  
Experimental Group

Wet litter is the most important cause of footpad dermatitis in poultry, this in turn being a highly relevant animal-related welfare indicator. This field study was subdivided into two experiments. In Experiment 1, the standard diet was supplemented by 0.2% enriched charcoal, being a non-specific absorber and therefore might be promising in reducing faecal moisture. In Experiment 2, the experimental group received a reduced crude protein diet during weeks 6–13, combined with a 0.2% enriched charcoal supplementation. The trials were each conducted with two batches on three farms under on-farm conditions. The animals were observed at 6, 10, 14 and 18 weeks of age to collect data on body weight and different health parameters. The mortality and litter samples were analysed after slaughtering. In Experiment 1, performance and health were not affected despite higher dry matter content of the litter. In Experiment 2, the weight of birds receiving the protein-reduced diet was decreased significantly throughout the experiment. However, the slaughter weight did not differ. The mortality was reduced by 0.5% in the experimental group. Therefore, it was concluded that 0.2% of enriched charcoal is not a valuable feed-additive regarding animal health, while temporary protein reduction might have positive effects.

scholarly journals A Comparison of On-Farm Methods for Estimating the Dry Matter Content of Feed Ingredients

1993 ◽  
Vol 76 (1) ◽  
pp. 293-299 ◽  
Author(s):  
G.R. Oetzel ◽  
F.P. Villalba ◽  
W.J. Goodger ◽  
K.V. Nordlund
Keyword(s):  
Dry Matter ◽  
Matter Content ◽  
Dry Matter Content ◽  
Feed Ingredients ◽  
On Farm

scholarly journals An on-farm study of the herbage quality and sward characteristics of plantain-clover mixes during late summer and autumn and resulting lamb growth rates

2018 ◽  
pp. 107-112
Author(s):  
Lydia M Cranston ◽  
Peter D Kemp ◽  
Steve T Morris ◽  
Brennon A Wood
Keyword(s):  
Growth Rates ◽  
Key Management ◽  
Plantago Lanceolata ◽  
Late Summer ◽  
Matter Content ◽  
Management Technique ◽  
Dry Matter Content ◽  
Herbage Quality ◽  
On Farm ◽  
Lamb Growth

An on-farm study investigated the herbage quality and sward characteristics of plantain-clover mixes and resulting lamb growth rates during late summer and autumn. Three farms were chosen, each with a minimum of 10 ha of plantain-clover mix (Plantago lanceolata ‘Ceres Tonic’, Trifolium pratense, Trifolium repens) used for lamb finishing. Each farm managed the plantain-clover mix area using their routine management without advice or comment from research staff. Throughout autumn, at approximately monthly intervals on the three farms, the pre- and post-grazing herbage masses, botanical composition, herbage quality, plantain dry matter content, secondary chemical composition and lamb growth rates were monitored. A low percentage of clover in the sward, a high percentage of dead stem material and a low crude protein concentration in plantain during dry periods, were identified as the most likely causes of low lamb liveweight gains during autumn. Grazing management during spring that maintains control of plantain stems and encourages the presence of clover, appears to be a key management technique for ensuring high lamb liveweight gains on plantain-clover mixes in late summer and autumn.

scholarly journals Possibilities of using dairy compounds exposed to different treatments in dairy cow feeding

2011 ◽  
Vol 49 (No. 5) ◽  
pp. 205-210
Author(s):  
B. Z Saricicek
Keyword(s):  
Milk Yield ◽  
Tannic Acid ◽  
Feed Efficiency ◽  
Milk Fat ◽  
Dry Matter ◽  
Latin Square ◽  
Matter Content ◽  
Dry Matter Content ◽  
Positive Effects ◽  
Solids Content

This study was conducted to investigate the effects of untreated dairy compound feeds; DCF (control) and DCFs subjected to 2% fat (F); 2.5% tannic acid (TA); 2% fat + 2.5% tannic acid (F + TA) on the milk yield and composition. In the study, 4 cows of Jersey breed were used and 4 × 4 Latin square experimental design was applied. Normal milk yield, 4% fat corrected milk yield (FCM), dry matter content of milk, non-fat solids content of milk, CP content of milk, fat content of milk, lactose content of milk, crude ash content of milk, daily DM consumption of cows, feed efficiency according to normal milk yield of cows, feed efficiency according to the FCM of cows were 11.96, 12.14, 10.89 and 11.94 kg/day (P < 0.05); 14.16, 14.50, 13.06 and 13.70 kg/day (P < 0.05); 13.37, 13.34, 13.54 and 13.41% (P > 0.05); 8.12, 8.00, 8.35 and 8.19% (P > 0.05); 3.67, 3.70, 3.87 and 3.63% (P < 0.05); 5.25, 5.34, 5.19 and 5.22% (P > 0.05); 4.97, 4.812, 5.01 and 5.042% (P > 0.05); 0.75, 0.73, 0.74 and 0.73% (P > 0.05); 15.97, 15.84, 15.94 and 15.59 kg/day (P > 0.05); 1.34, 1.31, 1.46 and 1.31 kg feed DM/kg milk (P > 0.05); 1.13, 1.09, 1.22 and 1.14 kg feed DM/kg milk (P > 0.05), respectively. According to the results it can be stated that 2.5TA and 2F treatments had positive effects on FCM milk yield and milk protein yield.  

scholarly journals THE EFFICIENCY OF DIHYDROQUERCETIN IN THE FEEDING OF BROILER CHICKENS

REPORTS ◽  
2021 ◽  
Vol 2 (336) ◽  
pp. 13-17
Author(s):  
N. N. Kuzmina ◽  
O. Yu. Petrov ◽  
A. K. Karynbayev ◽  
A. S. Alentayev
Keyword(s):  
Active Substance ◽  
Broiler Chickens ◽  
Live Weight ◽  
Biologically Active ◽  
Feed Additive ◽  
Control Group ◽  
Standard Diet ◽  
Biologically Active Substance ◽  
Growing Period ◽  
Experimental Group

The purpose of the research was to determine the feasibility and effectiveness of using a natural antioxidant of plant origin – dihydroquercetin (DHA), as a biologically active substance, in combination with the main standard diet of broiler chickens. Scientific and economic experience conducted in production conditions on broiler chickens of the "COBB-500" cross allowed us to objectively establish that the addition of the biologically active substance Dihydroquercetin to mixed feed contributes to the increase in meat productivity and safety of broiler chickens. Feeding of broiler chickens was carried out with full-fledged compound feeds, in accordance with the recommendations of the originator for this cross. In terms of energy nutrition and the content of nutrient active substances, they were the same and differed between the groups in the amount of the additive administered. Chickens of the 1st control group received only feed (basic diet), the 2nd experimental group – advanced antioxidant supplement Dihydroquercetin in the amount of 0.5 g per 100 g of feed, the 3rd – 0.75 g per 100 g of feed, and 4th – 1 g per 100 g of feed. The duration of the experiment was 40 days and to clarify the effectiveness of increasing the duration of the broiler fattening period, it was extended to 60 days. Broiler chickens were reared on the floor, temperature and light conditions, air humidity, feeding and watering front of the bird during the experiment corresponded to the recommended standards. As a result of the conducted studies on the effect of adding optimal levels of biologically active feed additive Dihydroquercetin to the diet of broiler chickens, it was found that during the growing period, a higher coefficient of live weight gain was established in broiler chickens of the 3rd and 4th experimental groups, whose live weight increased by 105.32 and 120.48 times by the age of 40 days, while in broiler chickens of the 2nd experimental group by 102.57 times and the lowest–in control group chickens only in 90.96 times. The selected feed additive can be considered as an alternative to the use of feed antibiotics in the feeding of broiler chickens in industrial poultry farming technology.

scholarly journals Intestinal histostructure and immune protection activity of age -1+ carp after consumption of a prebiotic feed additive

2021 ◽  
Vol 4 (2) ◽  
pp. 31-37
Author(s):  
O. P. Dobrianska ◽  
M. I. Zhyla ◽  
O. I. Vishchur ◽  
O. V. Deren ◽  
M. Z. Koryliak
Keyword(s):  
The Body ◽  
Natural Resistance ◽  
Feed Additive ◽  
Phagocytic Index ◽  
Control Group ◽  
Average Weight ◽  
Histological Structure ◽  
Nonspecific Resistance ◽  
Positive Effects ◽  
Experimental Group

Currently, it is important in aquaculture to study and use products and additives, which have positive effects on the digestibility of nutrients by helping to normalize the intestinal microflora, thereby modulating fish immune response. The aim of the study was to assess the effect of a prebiotic based on mannan oligosaccharides produced from the outer walls of Saccharomyces cerevisiae cells on the histological structure, morphometric state of the intestine and activity of cellular and humoral components of nonspecific resistance of age -2+ carp. The experiment was conducted in four analogous ponds, which were stocked with age-1 scaly carp with an average weight of 55–58 g with a stocking density of 1000 fish/ha. Carp had been fed balanced compound feed for 60 days. Experimental groups of fish were fed with a prebiotic as a feed additive in the amount of: 0.025 % – Experiment 1, 0.05 % – Experiment 2 and 0.075 % – Experiment 3. Use of the studied prebiotic did not damage the intestinal histological structure of carp of the experimental groups. The villi height and intestinal crypt depth of carp in Experiment 1 (P < 0.05) and Experiment 2 (P < 0.01) were larger compared to the control group. Experiment 3 showed destructive changes in intestinal mucosa. The results of histological examination indicated the effectiveness of the use of the studied prebiotic in the amount of 0.025 and 0.05 % in the diet of age -1+ carp due to the absence of pathological changes and active morphofunctional state of the intestine, which, in turn, had a positive effect on feed absorption and metabolic processes in fish body. Analysis of the indicators of cellular and humoral links of natural resistance showed that in carp of the second and third experimental groups lysozyme activity of serum was 5 and 11 % (P < 0.001) higher than in the control group. Similar changes, though found in a greater extent, were recorded in the study of bactericidal activity of blood serum, especially in individuals of the second and third experimental groups (by 6.8 (P < 0.01) and 15.2 %). While with carps of the third experimental group, which used a prebiotic drug in the amount of 0.075 %, the content of CEC was 20.5 % higher than in the control group, which indicates an additional antigenic load on the body and is an unfavorable diagnostic factor. At the same time, with the fish of the second experimental group, which received, respectively, 0.05 % of the supplement of the drug “Actigen” to the main diet, probably higher phagocytic activity of blood neutrophils was recorded. A direct dependence of the growth of the phagocytic index and the phagocytic number of neutrophils on the dose of the studied prebiotic was detected. Immunological studies indicated a dose-dependent effect of the prebiotic on the activity of cellular and humoral components of non-specific resistance of carp. Given this, for the effective functioning of innate protective mechanisms, for the increase of the body's immune potential and productivity, it is most appropriate to apply to the diet of carp prebiotic supplement “Actigen” in the amount of 0.025 and 0.05 %.

scholarly journals Fungal Contamination and Aflatoxin B1 Detected in Hay for Dairy Cows in South Italy

2021 ◽  
Vol 8 ◽  
Author(s):  
Carlotta Ceniti ◽  
Nicola Costanzo ◽  
Anna Antonella Spina ◽  
Marinella Rodolfi ◽  
Bruno Tilocca ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Animal Health ◽  
Fungal Species ◽  
Matter Content ◽  
Economic Losses ◽  
Dry Matter Content ◽  
Mycotoxin Contamination ◽  
South Italy ◽  
Food And Feed ◽  
Fungal Deterioration

The growth of filamentous fungi on fodder is recognized as responsible for fungal deterioration and mycotoxin contamination of the plant mass leads to economic losses in the dairy cow production system. Mycotoxin contamination has significant implications for human and animal health and is one of the major concerns in the food and feed chain. This research provides an insight into the variety of viable molds (i.e., filamentous microfungi) that can be isolated from hay produced in South Italy and destined to dairy cows. On different lots of hay (n = 55) collected from 20 dairy farms, a total of 33 different fungal species were identified. The most representative was Cladosporium cladosporioides (n = 46, 84%) followed by Alternaria alternata (n = 25, 45%), and Rhizopus stolonifer (n = 24, 44%). The species most closely related to aflatoxin (AF) contamination, Aspergillus flavus, was often isolated (n = 11, 20%). Regarding AF detection, all the hay samples were found to be scarcely contaminated by AFB1 and showed values from 0.0020 to 0.0077 mg/kg, below the limits established by European Union (EU legislation) (0.02 mg/kg). None of the samples were positive for Aspergillia and tested for AFB1 showed results exceeding established limits. Additionally, hay with moisture between 15.0 and 19.2% or crude ash on dry matter content ranging from 14.0 to 15.5% reported an increased presence of AFB1 (p &lt; 0.05) compared to the other samples. All the analyzed hay samples, besides the presence of molds, can be considered safe for the presence of AFB1. Prevention of mold spoilage is mandatory to reduce the exposure of humans and animals to mycotoxins.

scholarly journals Effects of Early Nutrition of Hatched Chicks on Welfare and Growth Performance: A Pilot Study

Animals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2888
Author(s):  
Jan Berend Lingens ◽  
Amr Abd El-Wahab ◽  
Marwa Fawzy Elmetwaly Ahmed ◽  
Dana Carina Schubert ◽  
Christian Sürie ◽  
...  
Keyword(s):  
Growth Performance ◽  
Nutrient Utilization ◽  
Matter Content ◽  
Factorial Analysis ◽  
Control Group ◽  
Dry Matter Content ◽  
Early Nutrition ◽  
Foot Pad ◽  
On Farm ◽  
Broiler House

This study aimed to investigate the possibility of rearing newly hatched chicks with immediate access to feed and water in the same hatching unit one week prior to transferring them to the conventional broiler house with special regards to foot pad health and growth performance. Two trials were performed with a total of 6900/6850 (trials 1/2) broiler chickens (ROSS 308). A total of 3318/3391 chicks (trials 1/2) were transported from the hatchery (duration of about 3 h) and reared in a conventional broiler house (control group: delayed nutrition on-hatchery hatched). The control group did not receive any form of nutrition until they were taken to conventional broiler housing. Additionally, a total of 3582/3459 (trials 1/2) embryonated eggs (d 18) were obtained from the same parent flock of the same commercial hatchery and taken to the farm facility. After on-farm hatch, the chicks had immediate access to water and feed (experimental group: early nutrition on-farm hatched). After d 6/7 of life, the on-farm hatched chicks (trials 1/2) were transferred to the broiler house on the same facility. The delayed nutrition on-hatchery hatched groups displayed a significantly lower dry matter content in the litter compared to the early nutrition on-farm hatched groups (two-factorial analysis) at d 6/7 and d 14 of life. However, thereafter, no significant differences were noted. Based upon two-factorial analysis, the early nutrition on-farm hatched groups revealed lower foot pad lesions from d 14 of life onwards and showed a higher body weight (BW) throughout the rearing period compared to the delayed nutrition on-hatchery hatched groups (p < 0.05). Overall, early nutrition on-farm hatched chickens is of critical importance together with using new litter at d 7 to maintain healthy foot pads as well as to enhance nutrient utilization and optimize the growth performance.

scholarly journals The use of biochar in animal feeding

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7373 ◽  
Author(s):  
Hans-Peter Schmidt ◽  
Nikolas Hagemann ◽  
Kathleen Draper ◽  
Claudia Kammann
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Feed Efficiency ◽  
Organic Fertilizer ◽  
Animal Health ◽  
Organic Matter Content ◽  
Feed Additive ◽  
Nutrient Losses ◽  
Gas Emissions ◽  
Positive Effects

Biochar, that is, carbonized biomass similar to charcoal, has been used in acute medical treatment of animals for many centuries. Since 2010, livestock farmers increasingly use biochar as a regular feed supplement to improve animal health, increase nutrient intake efficiency and thus productivity. As biochar gets enriched with nitrogen-rich organic compounds during the digestion process, the excreted biochar-manure becomes a more valuable organic fertilizer causing lower nutrient losses and greenhouse gas emissions during storage and soil application. Scientists only recently started to investigate the mechanisms of biochar in the different stages of animal digestion and thus most published results on biochar feeding are based so far on empirical studies. This review summarizes the state of knowledge up to the year 2019 by evaluating 112 relevant scientific publications on the topic to derive initial insights, discuss potential mechanisms behind observations and identify important knowledge gaps and future research needs. The literature analysis shows that in most studies and for all investigated farm animal species, positive effects on different parameters such as toxin adsorption, digestion, blood values, feed efficiency, meat quality and/or greenhouse gas emissions could be found when biochar was added to feed. A considerable number of studies provided statistically non-significant results, though tendencies were mostly positive. Rare negative effects were identified in regard to the immobilization of liposoluble feed ingredients (e.g., vitamin E or Carotenoids) which may limit long-term biochar feeding. We found that most of the studies did not systematically investigate biochar properties (which may vastly differ) and dosage, which is a major drawback for generalizing results. Our review demonstrates that the use of biochar as a feed additive has the potential to improve animal health, feed efficiency and livestock housing climate, to reduce nutrient losses and greenhouse gas emissions, and to increase the soil organic matter content and thus soil fertility when eventually applied to soil. In combination with other good practices, co-feeding of biochar may thus have the potential to improve the sustainability of animal husbandry. However, more systematic multi-disciplinary research is definitely needed to arrive at generalizable recommendations.

scholarly journals Quality of muscular tissue of bovine (brown shvitskaya breed) with different technology of keeping

2019 ◽  
pp. 66-69
Author(s):  
Anatoliy Foadovich Shevkhuzhev ◽  
Murat Borisovich Ulimbashev ◽  
Dagir Ramazanovich Smakuyev ◽  
Fatimat Nukhovna Saitova
Keyword(s):  
Dry Matter ◽  
Protein Quality ◽  
Matter Content ◽  
Control Group ◽  
Meat Sample ◽  
Muscular Tissue ◽  
Dry Matter Content ◽  
Group I ◽  
Group Ii ◽  
Experimental Group

Studies are devoted to the study of the qualitative indicators of the muscle tissue of bulls of brown Swiss breed, depending on the technology of cultivation. It was established that the highest content of dry matter and protein was characterized by the meat of animals of the first experimental group, contained according to the traditional technology using feeding. Their superiority in the dry matter content in the total meat sample of animals of the II and III groups was 0.9 (P<0,001) and 0,45%, respectively, and in the protein content –1.64 (P<0,001) and 0,75% (P<0,001). The ratio of protein / fat was higher in the bulls of the first control group and amounted to 1,09 against 0,95 and 1,03 in the second and third groups. An analysis of the biological usefulness of the protein showed that in the longest back muscle in the content of tryptophan, animals of group I surpass analogs of group II by 11,1 mg%, and in the content of  hydroxyproline are inferior to them by 1,9 mg%. The highest protein-quality index was in bulls of group I, which were grown using feeding, the superiority of which over analogues of group II was 5.85% (P<0,001). Animals of the third experimental group occupied an intermediate position in this indicator and exceeded their peers of group II by 3,77% (P<0,05).

scholarly journals Effect of the different level of a dry feed additive on the lupin silage quality

2005 ◽  
Vol 53 (5) ◽  
pp. 21-30
Author(s):  
Petr Doležal ◽  
Josef Rotter ◽  
Jan Doležal ◽  
Václav Pyrochta ◽  
Jaroslav Poul
Keyword(s):  
Lactic Acid ◽  
Dry Matter ◽  
Volatile Fatty Acids ◽  
Nutritive Value ◽  
Ph Value ◽  
Total Content ◽  
Matter Content ◽  
Feed Additive ◽  
Dry Matter Content ◽  
Higher Alcohol

In the experiment, the effect of additive on the fermentation quality of lupine was examined, by comparing with the untreated control. Fresh green Lupine (Lupines lupine), variete Juno, dry matter content 187.15 g/kg at full waxy stage of maturiy were chopped to the legth of cut ca 30–50 mm. The crop was artificially wilted for a periody 24 h and ensiled as described above. Lupine were ensiled for 98 days in laboratory silos, capacity about 4 L alone or with supplementation of feed additive (5, 10, 20, 30, 40, 50 or 70 kg/tone forage respectively). The composition and as effective substances of this silage ingredient were dry whey (30%), maize meal (40%) and dry molases (30%). The silages fermented rapidly and changes in volatile fatty acids (VFA) production (P<0.01) and in sum of acids were noted. The different supplementation of additive in our experiment conditions increased significantly (P<0.01) the dry matter content, and decreased statistically significantly (P<0.01) the pH value. The higher DM content was in all experimental silages, but the highest DM content (P<0.01) was in silage with addition of 70 kg/t (231.58Ī0.91 g/kg). All treated silages were well fermented with low levels of ammonia and pH. The different addition of this aditive increased significantly (P<0.01) the contents of lactic acid and total content of acids in comparison with control silage. The experimental silage with higher (5%, resp. 7%) feed supplementation was of better quality (significantly higher ratio LA/sum of acids, higher content of lactic acid, lower NH3 content and pH value) than the control silage, or silage with lower concentration. In experiment feed additive–treated silages (by groups of 5 or 50 and 70 kg/t) had significantly higher alcohol content than untreated silage. It was concluded that feed additive used as a silage additive improved fermentation of lupine, reduced acetic acid and ammonia production and increased silage nutritive value.

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